Reeseb

I need to buy an original set of exhaust manifolds for my '66 300hp and want to make sure I get the right ones. I don't want to end up with SMOG or AIR ones. Are the part numbers different for those varieties? Can someone let me know the part numbers I need? I also have a question about date codes. I see dated ones for sale with a date of D13, for example, but no mention of the year code. Shouldn't the code be 6D13 in that case? Thanks for the help.

dharris45

1966 exhaust manifold casting numbers are as follows;

327 300 and 350 HP - Left side 3846559 and Right side 3747042

The 327 A.I.R. manifolds are - Left side 3872765 and Right side 3872778.

Reeseb

Are those part numbers only for 1966? If not, how do you tell the year they were made?

dharris45

Those are the casting numbers on the outside of the manifolds. The same castings are used for some models and 65 and 67.

The casting date does not have the year. Once installed you can't see the casting date. In fact NCRS Does not judge the casting day

stevelaham

I have a very nice pair of original manifolds
Steve
321-258-6866

stevelaham

I am new to the site, but have been a C-2 guy for 40 years, I have a set of correct original OEM exhaust manifolds for sale.
Steve Laham 321-258-6866
Thanks

stevelaham

Sorry Men, I am new to this forum, however not new to Corvettes as I have been a C-2 guy for over 40 years.
I do have a set of correct original exhaust manifolds for sale, (I have a ton of parts for sale, but can not seem to figure out how to post them !?)
Thanks
Steve

Reeseb

I just bought a pair on Ebay. Looks like at least one forum member is looking for a pair in the for sale/wanted form.

stevelaham

Thanks for the follow up, I have loads of other items trim, engine, hose, decals, plugs etc.etc let me know what else you might be looking for.
Thanks